<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <span>first</span>
    <span id="a">a</span>
    <span class="b">b</span>
    <span id="c">c</span>

    <label for="d">
        <input id="d" name="d" value="d"/>
    </label>


    <span id="x">x<span id="y">y<span id="z">z</span></span></span>
    <span>last</span>

    <ul>
        <li>1</li>
        <li>2</li>
        <li>3</li>
        <li>4</li>
        <li>5</li>
    </ul>
</body>
</html>